Radiator



Jan. 19, 1932.

G. H. PHELPS ET AL RADIATOR Filed Feb. 18. 19so GEO/PGE ip/151F5- f/ew/ve TBE/VNETf 5 plan of the central part of a radiator;

"45 taining a draft through' it; In that case the UNITED OF 'ICi LI-E Patented Jan. 19, 1932 GEORGE E. PHELPS, or wAREHonsE roINT, CONNECTICUT, AND IRVING "1'. BENNE'rni or BROOKLYN, NEW YORK, .ASSIGNORS TO. MURRAY MANAGEMENT on BROOKLYN, NEWYOR AUCORPQRATIO OFVNEW YORK CORIPQRATION, T

pnam met ma 18,, 71930. .Seri al b. 429,257. q

In a previous c Patentf No; 1574415078; and certain pending applications there: are described certain radiators of the convection I type comprisinghorizontal" tubes or similar nairow elongated h g elements to Which are applied an extendedarea structu composed of corrugated sheets .or the likeforming transverse plate's or' fins between which are vertical passages for heating the air and inducing a strong upward draftiand circulation of the heated air throughout the room to be warmedi In such radiators'the manner of securing the extended area structure to the heating element is important.

' The contact sho'uldbe intimate andof substantial extent to'secu're good conductivity and should be durable under strainsfset up by" alternate :h'eatingsand cooling, and should be as economical as possible; The

present inventionaims to-secure these'iad I vantages I The accompanying drawings" illustrate embodiments oftheinvention, Fig. 1 is a front elevation 1andFig; 2, a

, Fig. 3 is a perspective insectionthrough one ofthejoints, s Fig. 4 is an elevation of a'pair 'oif-straps; Fig. 5 is a perspective illustrating another type of joint.

The heating element is a tube re stm V or other heating medium extendingi lhorizontallygin two sections; inl vertical alignment with each other.

copper. s

Theiheating'element may be a singlesection of tubing ormaybe more than-the two sections illustrated. And althoughgin the ordinary use'sof heating the air of arroom the sections should be in vertical alignment,

yet this is notnecessary in all cases and par-V ticul'arly not in cases where theradiator is used with a blower or other means for'maim nal plates" 12; outer longitudinal plates {13 corrugated sheets.""- V t V 7 ing against" the flat plates,

It is preferably of i 7 d Y- Instead of the separate 'straps described,""

other devicesmay be used which pass-through to clinch-the parts together.

sheet which iclinches the parts by being passed radiator" maybe set with air passagesat various other'ang'les than the verticalone shown. gr heradiator may be used for coolin'gtheair'by circulating cold brine, for example, through the tubetin; which case the air circulation would be downward;

Applied to opposite sides of the tube are corrugated sheets forming inner longitudi- 1 and transverse plates or fins 14. The'inner I plates 12 arebent outward to fol-In recessed portions'flf which embrace the tube so as;

to providea considerable contact area. 1

' lhe oppositeplates 12 are brought close together to jCOlTtfiCt with each other 'abovel and below the tubes, 4 itions ibeing located on "the outside-of the Above and below-the'tube, the plates l are punched to form apertures 16. Stiff steel straps 17and 18 are 'shapedto fit the recessed portions '15 at opposite sides; At theends, the straps have fiat portions 19 and 20 bear l2 and serving, when the straps aredrawn together to press the recessed portions 15 of the sheets into'finti mate contact with the-tubearound substantially its entire circumferences Extensions 21 are provided on the ends-of one of the straps, which pass through the openings 16 and are clinchedover the opposite strap while -the parts are pressed together thus holding the sheet metal in intimate and extensive contact with the tube.

thesheet metal at one side and are'bent over In Fig. 5; for example, the-plates 12 themselves are punched to form ea'rs 16 which arefirst bent to the position in the upper'part'of'thefigure and then clinched over as shown in the lower part. It is the earjwhich extends from the left hand the-fastening opera-Q 7 through the opening in the right hand sheet operations I with pure 4O sons not connected with the heat transfer of is not necessary and then bent over. But a single operation may punch out the ears 16 from both plates when the latter are close together and-thus save the separate operation of punching holes in the right hand sheet. A single operation may in fact punch out the ears and clinch them over.

For some installations it is sufficient to have acorrugated sheet at only one side, using a straight flat sheet or a series of separate plates 12, or any other style of anchorage, at the other side. Or a single plate may be used, at one side of the tubing only, a strap similar to 17, Fig. 4,.having. its recessed portion bearing against the tube directly and its ends passing through the corrugated plate at the other side and clinched over. strap may be used in this way with the use of sheets on both sides of the tube, the strap bearing against the sheet at one side and having its ends pass through both sheets and clinched over.

Radators of generally similardesign have been built also with separate transverse plates or'fins like 14 but free at their outer edges and with flanges like the plates 12 engaging the heating element. The method of fastening above described may be applied to the flanges of such separate fins as well as to the plates 12 forming parts of the continuous corrugated sheets illustrated, In some cases it to clamp the corrugated plates to the heating (or cooling) element so tightly as in the previous cases, because sub sequent tinning, galvanizing or other such are required in order to comply food regulations or for other reathe joint. In these cases the subsequent operation bonds the corrugated plates to the tube intimately, and in fact makes the whole structureone continuous piece. It is obvious that when such subsequent treatment is intended it is only necessary to hold the plates in-position and in contact with the tube until this treatment takes place.

. This may be well accomplished by the use of fasteners at or near the top and bottom only, or of ears 16 like those of Fig. 5, one above the uppermost tube section and one below the lowermost tube section, or. in fact they may belocated in widely varying'positions. The clips of Fig. 4,-or the single clip 17, may be similarly used.- In fact, in cases where the corrugated plates are of suificiently heavy gauge or of a metal which is comparatievly stiff and rigid, and where tinning is not required for other reasons, the use of clips or clinch connections will produce contact sufficiently goodfor satisfactory use Without any subsequent treatment.

Instead of using straps like those of Fig. 4 with both extensions 21' on one strap, each strap may have an extension at one end, to be Or a single over .ing said parts in engagement with the heatclinched over the short end of the opposite strap. This simplifies the manufacture, making all the straps alike. Various other modifications may be made by those skilled in the art without departing from the invention as defined in the following claims.

What we claim is 1. A radiator including a heating element, a sheet metal structure composed of two parts at opposite sides of the heating element and fastened together by devices passing through one of said parts and bent over at points closely. above andbelow the heatingelement to hold such parts'in contact with the heating element around substantially its entire circumference.

2. A radiator including a heating element, a sheet metal structure composed of two parts at opposite sides of the heating element, said parts embracing the heating element and substantially meeting each other at points above and below the heating element, straps bearing against the outer faces of said parts and means for mechanically fastening the opposite straps to each otherto hold said parts in engagement with the heating element around substantially its entire circumference.

3.- A radiator including a heating element in a plurality of tubular sections, a sheet metal structure composed of two parts at opposite sides of the heating element, straps bearingagainst the outer faces of said parts and devices extending from the straps at one side through the sheet metal parts at points between said tubular section and over the straps at the opposite side for holding said parts in engagement with the heating element. 7 i q 4. A radiator including a heating element, asheet metal structure composed of two parts at opposite sides of the heating element, straps bearing against the outer faces of said parts andan extension on the end of the strap at one side extending through said parts and the strap at the opposite side for holding element.

'5. A radiator including a heating element, a sheet metal structure composed of two parts at opposite sides of'the heating element and fastened together by'devi'ces passing through one of said parts, and bent over to hold such parts in contact with-'the heating element.

6. A radiator including a heating element, a sheet metal structure atone side of the heating element and-a member at the other side passing through the sheet metal and bent over to hold the "latter in contact with the heating element.

, 7 A radiator mcluding a heating element, a sheet metal structure and straps at oppositesides, one of said straps having an end extension passing through the sheet metal and bent over the strap at the opposite side. 8. A radiator including a heating element, a sheet metal structure composed of parts at opposite sides of the heating element and fastened by devices integral with one of said parts and passing through the other of said parts and bent over against it to hold the parts in contact with the heating element.

In Witness whereof; we have hereunto H. PHELPS.

signed our names. I

GEORGE V IRVING T. BENNETT. V 

